Harvard study: obesity on the rise

CAMBRIDGE, Mass. -- A study out of Harvard says the obesity epidemic is on the rise.

Experts have previously said the obesity rate for the U.S. has peaked at 34 percent, but researchers at Harvard believe the rate could go as high as 42 percent.

The problem may be based on social interactions.

The study suggests obesity spreads like a disease and people can "catch it" from their friends.

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